제출 #643468

#제출 시각아이디문제언어결과실행 시간메모리
643468BaytoroExhibition (JOI19_ho_t2)C++17
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> using namespace std; //#ifndef EVAL //#include "grader.h" //#endif #define Baytoro_MayrambekovOrz void solve() #define ios ios::sync_with_stdio(false); cin.tie(NULL); #define pb push_back #define all(x) x.begin(), x.end() #define rall(x) x.rbegin(), x.rend() #define fr first #define sc second #define int long long #define endl '\n' #define yes cout<<"YES\n"; #define no cout<<"NO\n"; void fopn(string name){ freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout); } int binpow(int a,int n){ if(n==0) return 1; if(n%2==1) return binpow(a, n-1)*a; else{ int b=binpow(a, n/2); return b*b; } } bool cmp(pair<int,int> a, pair<int,int> b){ return a.sc<b.sc; } int a,b,c,n,m,i,j,k,x,y,cnt=0,sum=0,res=0; Baytoro_MayrambekovOrz{ cin>>n>>m; vector<pair<int,int>> vec(n+1); vector<int> r(m+1); for(i=1;i<=n;i++) cin>>vec[i].fr>>vec[i].sc; for(i=1;i<=m;i++) cin>>r[i]; sort(all(vec),cmp); id--; sort(all(r)); int id=m,i=n; res=0; for(i=n;i>0 && id>0;i--){ if(r[id]<vec[i].fr) continue; id--; res++; } cout<<res<<endl; } main(){ ios; int T=1; //cin>>T; while(T--){ solve(); } }

컴파일 시 표준 에러 (stderr) 메시지

joi2019_ho_t2.cpp: In function 'void solve()':
joi2019_ho_t2.cpp:44:3: error: 'id' was not declared in this scope; did you mean 'i'?
   44 |   id--;
      |   ^~
      |   i
joi2019_ho_t2.cpp: At global scope:
joi2019_ho_t2.cpp:56:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   56 | main(){
      | ^~~~
joi2019_ho_t2.cpp: In function 'void fopn(std::string)':
joi2019_ho_t2.cpp:18:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |  freopen((name+".in").c_str(),"r",stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
joi2019_ho_t2.cpp:19:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   19 |  freopen((name+".out").c_str(),"w",stdout);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~